Resawing-machine.



w. 0. came. BESAWING MACHINE. APPLICATION FILED NOV- 25 1916- Patented Mar. 19, 1918.

rrnn s'rarns WILLIAM OLLIVER CRAIG, OF NORTH VANCOUVER, BRITISH COLUMBIA, CANADA.

RE-SAWING-MACHINE.

To all whom it may concern:

Be it known that I, WVILLIAM OLLIvnR CRAIG, a subject of the King of Great Britain, and a resident of the city of North Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Resawing-Wlachines, of which the following is a specification.

My invention relates to improvements in machines for resawing lumber as it leaves the planer and matcher, and the object of my invention is to provide a device of this nature which is adapted either for attachment to existing machines or to be built as an integral part of new ones, and which is simple in construction and operation, and in which the saws with which it is provided are capable of a wide range of adjustment, either laterally, vertically, or angularly, so that a board leaving the planer may be split into planks of equal or unequal thickness, or may have cuts of any desired angle or depth made in its edges, which device is particularly useful for forming bevel siding or the like. A further object is to enable very fine adjustment of the saws to be made with great facility and reliability.

I attain these objects by the means illus trated in the accompanying drawings, in which- Figure 1 is a side elevation of my machine.

Fig. 2 is a front view.

Fig. 3 is a plan view of Fig. 2.

Fig. 4 is a front elevation of the swinging frame and its casing, the casing being shown in part section.

Fig. 5 is a sectional plan view of Fig. 4.

Fig. 6 is a detail view showingthe method of adjusting the saws.

Fig. 7. is an elevation showing the right hand side of the swinging frame.

Fig. 8 is an elevation showing the left hand side of the swinging frame.

Fig. 9 is a plan view of the swinging frame and shaft bearings.

Similar figures of reference indicate similar parts throughout the several views.

1 and 2 indicate the sides of the frame of the machine, connected together by the back portion 3. base plate 4, and a front plate 5, and which sides are provided with openings, as shown at 6 and 7 in Fig. 1, so that the adjusting screws and. shafts, hereinafter mentioned, may be readily accessible.

8 indicates a casing open at the top and bottom disposed between the sides 1 and 2 Specification of Letters Patent.

Patented Mar. 19, 1918.

Application filed November 25, 1916. Serial No. 133,354.

and vertically movable therebetween, being provided with threaded lugs 9 and 10, in which are normally engaged correspond ingly threaded rotatable shafts 11 and 12, on the lower ends of which shafts are sooured bevel pinions 13 and 14 meshing respectively with bevel pinions 15 and 16 secured on a shaft 17 rotatably carried by the sides 1 and 2, one end of shaft 17 being extended through side 1 and being provided with a bevel pinion 18 which meshes with a bevel pinion 19 secured on the lower end of a rotatably mounted operating shaft 20 having on its upper end a handle 21, from all of which it will be seen that rotation of shaft 20 will cause rotation of shaft 17 and the threaded shafts 11 and 12, so that the casing 8 will be moved up or down according to the direction of rotation of shaft 20.

22 indicates a frame provided with two sides 23 and 24: and having a slot 25 formed near its top edge to one side of its vertical center line, through which slot extends a pin 26 secured into the casing 8, the frame being thus swingably mounted on the oils ing and capable of vertical movement thereon. The frame is also provided adjacent its upper and lower edges with slots 27 through which extend set screws 28 adapted to be screwed'into the casing so as to secure the frame thereto in any adjusted position.

29, 30, 31, and 32 indicate non-rotatable shafts carried by the frame 22, as shown more particularly in Figs. 2 and 9, on which shafts are mounted laterally movable brackets 33 and3 l, bracket 33 being mounted on shafts 29. and 30 and bracket 3% on shafts 31 and 32, as shown in Fig. 2. These brackets are provided with upper and lower bearings 3536 and 3738 respectively, in which bearings the saw spindles 39 and 10 are rotatably mounted, the saws being inclicated bythe numerals a1 and L2, and the respective brackets are arranged one in advance of the other so that the saws may revolve clear of each other when brought to their inmost positions. Each bracket 33 and 34 is provided with a threaded nut, as inclicated at 43 and 4 1 respectively. normally engaging correspondingly threaded screws 45 and 46 respectively, the outer extremities of which are squared, as at 47 and 48 in Figs. 1 and 9, so that the screws may be ro-Y tated by means of suitable handles, as indicated at 4:9 in Fig. 1, from which it will be seen that rotation of the. screws 45 and 46 will move the brackets 33 and 34; laterally and in or out according to the direction of rotation of the screws.

The manner of mounting the ends of the shafts 29, '30, 31, and 32 to allow for their lateral or'vertical adjustment is shown in Figs. 2, 6, and 7 and the method of adjust ment is illustrated in Fig. 6. Taking first of all shafts 29 and 30, a boss 50 is provided on the left hand side of the swinging frame 22 into which boss extends the outer end of shaft 29, its inner end being carried in the usual .manner in the center rib 51 of the frame, while bosses 52 and'53 are provided 1 desired.

for the shaft 30, as shown in Fig. 2, into which each end of the shaft extends. The bores of the respective bosses are larger than the respective shafts so that a space is left all around the shaft, and the shaft may be squared, flattened, or reduced at its ends, as Set screws 5 1 and 55 are threaded through boss 50 on the vertical center line thereof so as to bear on the top and bottom sides of the shaft, while set screws 56, 57,

58, and 59 are threaded through boss 52 to.

bear on the top, bottom, and each side of shaft 30 at its outer end, and set screws 60 and Glare threaded through boss 53 tobear on thetop and bottom sides of shaft 30 at its inner end, from all of which it will be quite clear that shaft 29 may be adjusted set screws 68 and 69, shown in Fig. 2. .There is no adjustment provided for shaft 31.

It has already been mentioned that the frame22 is swingably mounted onthepin 26, and for moving this frame a rod 70 is provided, the-upper end of which is threaded and engaged in a correspondingly threaded bearing 71 swingably secured to the casing 8, while its lower end is rotatably secured into a roller or ball 72 carried freely by brackets 7 3 and 7 1 so that the lower end of the rod is carried swivel fashion while at the same time being free to rotatein the roller, all as shown in Figs. 3 and' l. The upper end of the rod has secured thereon a handle 75 by means of which it may be rotated to screw up or down in the bearing 71, and as a similar arrangement is provided for the other side of the frame, as shown in Fig. 4, the rod of which is indicated by the- I numeral 81, it will be apparent that the able guides for the boards, as indicated by the numerals 79 and 80,

The utility and convenience of the devic described in the foregoing will be apparent, as it will be seen that a wide range of adjustment of the saws is provided for, since by manipulating the set screws governing the positions of the respective shafts 29, 30, and 32 the alinement of the saws one with the other may be varied to a greater or less extent; by operating the rods 70 and 81 the frame 22 may be tilted in either direction to carry the saws from a horizontal position to any desired inclination, or to raise or lower them; by operating the rod 20. the casing 8, and therefore the saws, may be lowered out of the way of boards being run he the planer and which are not intended to be resawn; by operating screws 45 and 16 the saws may be moved laterally toward, or away from, each other; and thus anyxdesired cutting operation maybe performed on the lumber. V r

lVhat I claim as my invention is: 7

1. In a resawingmachine, a stationary frame, an eccentrically pivoted frame mounted on said stationary frame, sawing elements disposed above the stationary frame, and rotatably mounted on the pivoted frame, an interiorly threaded nut on the insidev of the stationary frame adjacent its upperedge,

and a correspondingly threaded shaft extending downwardly through said nut, the

lower end of said shaft being rotatably and swingingly connected to one side of the said pivoted frame.

V 2. In a resawing machine,,a sliding frame,

an eccentrically pivoted frame mounted on sald sliding frame and vertically adjustable thereon, sawing elements disposed above the sliding frame, and rotatably mounted on the pivoted frame, an interiorly threaded lug on the inside of the sliding frame adjacent its upper edge, and a correspondingly threaded shaft extending downwardly through said lug, the lower end of said shaft being Irotatably and swingably connected to one side of the said pivoted frame.

Dated at North Vancouver, B. 0., this 8th 1 day of November, 1916'.

WILLIAM OLLIVER onare.

Gopies'of this patent may be obtained for five cents each, by addressing the Commissioner trauma,

' 'Washingtom'l). G. 

